Purchased in 2017 and used by my children, but no longer needed, so I am selling it. The main unit is not included due to Mercari's regulations regarding medical supplies. Only the accessories are included. I disinfected them each time they were used. Operation has been confirmed, and there are no problems with use. There is some yellowing due to aging. Please refrain from purchasing if you are concerned, as this is a used item. The instruction manual has some damage to the paper, but I can include it. Please let me know if you would like it. I am selling it at a low price, so I am sorry, but I cannot offer a discount.